Add scale health display API. Adds BUKKIT-4432
POM Changes
Measure Timings Duration
Timings Paste Command
Enchanced Timings
Add PlayerItemDamageEvent
BungeeCord Support
Add Arrow API
Add Particle API
Define EntitySpawnEvent and SpawnerSpawnEvent

Defines EntitySpawnEvent and SpawnerSpawnEvent. Adds BUKKIT-267 and BUKKIT-1559
Entity Mount and Dismount Events
(Libigot) Initial changes

- Reverts commit 203de4180b40f069d2c175d763476bd4ce338c76.
- Exposes server to PluginLoader
(Libigot) Remove CONTRIBUTING.md
(Libigot) Revert "Add Arrow API" Patch

This is reverted in favor of our more functional version which was
existant prior to this.

This reverts commit 5822a7720b138f9d83ca85502fe62649671a9eaf.
(Libigot) Revert "Add PlayerItemDamageEvent" Patch

This is reverted in favor of our own PlayerItemDamageEvent that was
existant prior to this patch.

This reverts commit baa0b90e10d5c52fd188ceb4ea1a8411e4113279.
(Libigot) Update pom.xml
(Libigot) Update README.md
(Libigot) Add Custom Events

- Added BeaconPotionEvent by @V10lator
- Added EntityAddEvent by @V10lator
- Added EntityBornEvent by @andrepl
- Added EntityMoveEvent by @V10lator
- Added EventRemoveEvent by @V10lator
- Added FurnaceSmeltingEvent by @TheYeti
- Added PlayerItemDamageEvent by @Sleaker
(Libigot) Add API functions from Surge
(Libigot) Add LibigotTask

A self-scheduling Runnable that doesn't depend on a plugin.